[Vor. 5 
10 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
umbrinous, mottled with white when fresh, drying almost 
black, eut surface shiny, hard when dry, but soft-gelatinous 
when fresh; cavities subglobose to irregular, filled with 
spores, about 120 д broad; septa about 40 џ broad, hyaline, 
of very gelatinized hyphae, not scissile; basidia quite prom- 
inent, hyaline, gelatinized, 6-8x(11-13 и, pyriform; sterig- 
mata short; spores raw umber in mass, acrogenous, creamy, 
ellipsoid, sometimes somewhat allantoid, 1-2-guttulate, 
smooth, nucleus long, equatorially placed, 3-55-10 y. 
On bank among lichens. Cosmopolitan. December to Jan- 
uary. 
This species seems to be closely related to the forms hav- 
ing duplex peridia through R. diplophloeus, in that both have 
vesicular cells in the hyphae of the outer portion of the pe- 
ridium. In external appearance it resembles R. luteolus, 
while the greatly gelatinized basidia relate it to R. roseolus. 
Specimens examined: 
Exsiccati: Rabenhorst-Winter, Fung. Eur., 3436, under Ше 
name Melanogaster Owanianus Kalchbr. in herb. 
Africa: Cape Good Hope, near East Somerset, P. MacOwan, 
in Rabenhorst-Winter, Fung. Eur., 3436 (in Mo. Bot. Gard. 
Herb., 5646). 
Jamaica: Cinchona, W. 4. Ф E. L. Murrill, 605, type (in 
N. Y. Bot. Gard. Herb.). 
Colorado: Fort Collins, B. O. Longyear (in Lloyd Mus., 
12556). 
Australia: Sydney, R. T. Baker (in Lloyd Mus., 03957). 
6. Rhizopogon luteolus Fries & Nordholm emend. Tulasne, 
Giorn. Bot. Ital. 2:57. 1844; Fries & Nordholm, Symb. Gast. 
1:5. 1817; Fries, Syst. Myc. 2:294. 1823; Summa Veg. 
Scand. 435. 1849; Wahlenberg, Fl. Suec. 2: 997. 1826; Raben- 
horst, Fl. Lusatiea, Abt. IT. 388. 1840; Deutschl. Krypt. Fl. 
1:246. 1844; Desmaziéres, Pl. Crypt. Exsice., ed. 2, 21. 
No. 1013. 1846; Tulasne, Fung. Hypog. 87-88. 1851; DeToni 
in Saee. Syll. Fung. 7: 161. 1888; Hesse, Нуров. Deutschl. 
1:87-89. 1891.—Not Krombholz, Nat. Abbild. u. Beschr. 
Schwámme 8 : 21. pl. 60, f. 13-15. 1843; nor Karsten, Finska 
